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Samsung Galaxy S6 vs Samsung Galaxy A51 5G vs Samsung Galaxy A71 5G

Compare phone and tablet specifications of up to three devices at once.

Comparison mode:

Display

Size:

5.1 inches
6.5 inches
6.7 inches

Resolution:

2560 x 1440 pixels, 577 PPI
2400 x 1080 pixels, 20:9 ratio, 405 PPI
2400 x 1080 pixels, 20:9 ratio, 393 PPI

Technology:

Super AMOLED
Super AMOLED
Super AMOLED Plus

Refresh rate:

60Hz
60Hz

Screen-to-body:

70.48 %
87.37 %
88.38 %

Features:

Scratch-resistant glass (Corning Gorilla Glass 4), Ambient light sensor, Proximity sensor
Scratch-resistant glass (Corning Gorilla Glass 3), Ambient light sensor, Proximity sensor
Scratch-resistant glass (Corning Gorilla Glass 3), Ambient light sensor, Proximity sensor

Hardware

System chip:

Samsung Exynos 7 Octa 7420
Samsung Exynos 980
Qualcomm Snapdragon 765 SM7250-AA

Processor:

Octa-core, 2100 MHz, ARM Cortex-A57 and ARM Cortex-A53, 64-bit, 14 nm
Octa-core, 2200 MHz, ARM Cortex-A77 and ARM Cortex-A55, 64-bit, 8 nm
Octa-core, 2400 MHz, Kryo 475, 64-bit, 7 nm

GPU:

Mali-T760 MP8
Mali-G76 MP5
Adreno 620

RAM:

3GB LPDDR4
6GB LPDDR4
6GB LPDDR4

Internal storage:

128GB, not expandable
128GB, available to use: 105.3 GB
128GB (UFS 2.1), available to use: 104.3 GB

Storage expansion:

microSDXC up to 1000 GB
microSDXC up to 1000 GB

Device type:

Smartphone
Smartphone
Smartphone

OS:

Android (7.0 Nougat, 6.0 Marshmallow, 5.1 Lollipop, 5.0 Lollipop), Samsung TouchWiz UI
Android (11, 10), Samsung One UI
Android (11, 10), Samsung One UI

Battery

Capacity:

2550 mAh
4500 mAh
4500 mAh

Type:

Li - Ion, Not user replaceable
Li - Polymer, Not user replaceable
Li - Polymer, Not user replaceable

Charging:

Fast charging, Qi and Powermat wireless charging
Fast charging
Fast charging

Max charge speed:

Wired: 25.0W
Wired: 25.0W

Camera

Rear:

Single camera
Quad camera
Quad camera

Main camera:

16 MP (OIS, Autofocus, BSI sensor)
48 MP (PDAF)
64 MP (PDAF)

Specifications:

Aperture size: F1.9; Focal length: 28 mm; Sensor size: 1/2.6"; Pixel size: 1.12 μm
Aperture size: F2.0; Focal length: 26 mm; Sensor size: 1/2"; Pixel size: 0.8 μm
Aperture size: F1.8; Focal length: 26 mm; Sensor size: 1/1.7"; Pixel size: 0.8 μm

Second camera:

12 MP (Ultra-wide)
12 MP (Ultra-wide)

Specifications:

Aperture size: F2.2; Focal Length: 13 mm; Pixel size: 1.12 μm
Aperture size: F2.2; Focal Length: 12 mm

Third camera:

5 MP (Macro)
5 MP (Macro)

Specifications:

Aperture size: F2.4; Focal Length: 40 mm
Aperture size: F2.4; Focal Length: 25 mm; Sensor size: 1/5"; Pixel size: 1.12 μm

Fourth camera:

5 MP (Depth information)
5 MP (Depth information)

Specifications:

Aperture size: F2.2; Sensor size: 1/5"; Pixel size: 1.12 μm
Aperture size: F2.2

Video recording:

3840x2160 (4K UHD) (30 fps), 1920x1080 (Full HD) (60 fps), 1280x720 (HD) (120 fps)
3840x2160 (4K UHD) (30 fps), 1920x1080 (Full HD) (120 fps), 1280x720 (HD) (480 fps)
3840x2160 (4K UHD) (30 fps), 1920x1080 (Full HD) (240 fps), 1280x720 (HD) (960 fps)

Features:

OIS, HDR, Continuous autofocus, Picture-taking during video recording, Video light, Video calling
Hyperlapse, EIS
Hyperlapse, EIS

Front:

5 MP (HDR)
32 MP (HDR)
32 MP (HDR)

Video capture:

2560x1440 (QHD) (30 fps)
1920x1080 (Full HD)
1920x1080 (Full HD)

Design

Dimensions:

5.65 x 2.78 x 0.27 inches (143.4 x 70.5 x 6.8 mm)
6.26 x 2.90 x 0.34 inches (158.9 x 73.6 x 8.7 mm)
6.40 x 2.97 x 0.32 inches (162.5 x 75.5 x 8.1 mm)

Weight:

4.87 oz (138.0 g)
6.60 oz (187.0 g)
6.53 oz (185.0 g)

Materials:

Back: Glass; Frame: Aluminum
Back: Plastic; Frame: Aluminum
Back: Plastic; Frame: Aluminum

Biometrics:

Fingerprint (touch)
2D Face unlock, In-screen fingerprint
2D Face unlock, In-screen fingerprint

Features:

Notification light, Touch sensitive control keys

Keys:

Left: Volume control; Right: Lock/Unlock key
Right: Volume control, Lock/Unlock key
Right: Volume control, Lock/Unlock key

Colors:

Black, Gold, Blue, White
Prism cube black
Prism Cube black, Prism Cube sliver, Prism Cube blue

Cellular

5G:

n41, n71, SA, NSA
n2, n5, n41, n66, n71, Sub-6, mmWave

LTE (FDD):

Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 17(700 b), 20(800 DD)
Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 8(900), 12(700 a), 13(700 c), 17(700 b), 20(800 DD), 25(1900+), 26(850+), 28(700 APT), 66(AWS-3), 71(600)
Bands 1(2100), 2(1900), 3(1800), 4(AWS-1), 5(850), 7(2600), 12(700 a), 14(700 PS), 20(800 DD), 29(700 d), 30(2300 WCS), 66(AWS-3)

LTE (TDD):

Bands 38(2600), 39(1900+), 40(2300), 41(2600+)
Bands 38(2600), 39(1900+), 40(2300), 41(2600+)

UMTS:

Bands 5(850), 2(1900), 1(2100)
Bands 1(2100), 2(1900), 4(1700/2100), 5(850)
Bands 1(2100), 2(1900), 4(1700/2100), 5(850)

Data Speed:

LTE-A Cat 6 (300/50 Mbit/s), HSPA, HSUPA, UMTS
LTE-A Pro Cat 16 (1000/150 Mbit/s), HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s
LTE-A, HSDPA+ (4G) 42.2 Mbit/s, HSUPA 5.76 Mbit/s

SIM type:

Nano SIM
Nano SIM

HD Voice:

Yes
Yes

Multimedia

Headphones:

3.5mm jack
3.5mm jack
3.5mm jack

Speakers:

Earpiece, Loudspeaker
Earpiece, Loudspeaker
Earpiece, Loudspeaker

Features:

Album art cover, Background playback, Custom equalizer, Preset equalizer, Sound effects
Dolby Atmos
Dolby Atmos

Screen mirroring:

DLNA, Wireless screen share
Wireless screen share
Wireless screen share

Radio:

FM
FM

Additional microphone(s):

for Noise cancellation, Video recording
for Noise cancellation
for Noise cancellation

Connectivity & Features

Bluetooth:

4.1
5.0
5.0

Wi-Fi:

802.11 a, b, g, n, ac, dual-band; Multiple antennas, MIMO, Wi-Fi Direct, Hotspot
802.11 a, b, g, n, ac, dual-band; Wi-Fi Direct, Hotspot
802.11 a, b, g, n, ac, dual-band; Wi-Fi Direct, Hotspot

USB:

microUSB, USB 2.0
Type-C (reversible), USB 2.0
Type-C (reversible), USB 2.0

Features:

Mass storage device, Charging
Charging, OTG
Charging, OTG

Location:

GPS, A-GPS, Glonass
GPS, A-GPS, Glonass, Galileo, BeiDou, Cell ID, Wi-Fi positioning
GPS, A-GPS, Glonass, Galileo, Cell ID, Wi-Fi positioning

Sensors:

Accelerometer, Gyroscope, Compass, Hall (for flip covers), Barometer
Accelerometer, Gyroscope, Compass, Hall (for flip covers)
Accelerometer, Gyroscope, Compass, Hall (for flip covers)

Other:

NFC, ANT+, UMA (Wi-Fi Calling), Infrared, Tethering, Computer sync, OTA sync
NFC, ANT+
NFC, ANT+

Hearing aid compatible:

M3, T3
M3, T3
M4, T3

Regulatory Approval

FCC approval:

Date approved:

Mar 02, 2015
Jul 15, 2020
Jun 04, 2020

FCC ID value:

A3LSMG920A
A3LSMA516U
A3LSMA716U

Measured SAR:

Head:

0.49 W/kg
1.18 W/kg
0.69 W/kg

Body:

0.96 W/kg
1.20 W/kg
1.11 W/kg

Simultaneous Transmission:

1.25 W/kg
3.25 W/kg
1.59 W/kg

Wireless Router:

1.04 W/kg
1.37 W/kg
1.16 W/kg

Phablet:

3.93 W/kg

EU SAR:

Head:

1.24 W/kg

Body:

1.53 W/kg

Buyers information

Price:

$ 500
$ 600

User Manual:

This is the official Samsu​ng Galaxy A51 5G User Guide in English provided from the manufacturer.
This is the official Samsu​ng Galaxy A71 5G User Guide in English provided from the manufacturer.

In The Box:

A to C USB Cable, Wall Adapter, SIM Pin/Ejector, Quick Start Guide, Terms & Conditions

Availability

Officially announced:

Mar 01, 2015
Apr 08, 2020
Apr 08, 2020
FCC OKs Cingular\'s purchase of AT&T Wireless